Air dryer treatment


05 June 2019
Desiccant air dryers offer manufacturers an economical way of protecting equipment, reducing maintenance costs and cutting their carbon footprint, according to Oxair, an Australian specialist in gas separation for international markets.
For many industrial operations it is important that pneumatic equipment is in an environment where the compressed air supply is clean and consistent. As well as affecting energy bills and production costs, contamination with water, dirt or dust can result in poor performance of equipment, breakdowns, corrosion of parts, failure of air cylinders and Solenoid valves as well as damage to air tools.
Condensation and corrosion can disrupt manufacturing in various industrial sectors including food, beverages, pharmaceutical, offshore and aerospace. Suppliers like Oxair offer a range of compressed air dryers, alongside refrigerant dryers, to ensure that the air is as dry as needed.
Oxair says a typical desiccant air dryer can pay for itself in less than a year by reducing and eliminating maintenance costs and downtime, making company operations more productive while having less impact on the environment by reducing transport emissions through service call-outs and the disposal of broken parts.
Dry air keeps pneumatic equipment running at peak efficiency and extends the service life of air tools, motors and cylinders. Desiccant dryers pass compressed air through a pressure vessel with two ‘towers’ filled with an alumina desiccant bed. This is the material that absorbs water from the air and the bed becomes saturated and is regenerated in the next cycle
The dryer is timed to switch towers based on a standard timing cycle. During the drying cycle some compressed air is used to purge/dry the depressurised desiccant offline bed. Oxair’s desiccant air dryers are available in both electric and pneumatic control formats are PLC controlled with reliable HMI touch screen, the company also offers conversions on customers’ own air-drying equipment.
Air flows can be achieved from 100 SCFM to 10,000 SCFM, with pressures from 100 psi to 500 psi. Certified lifting frames are available as well as the multi stage filtration system for maximum protection. AS-1210 or ASME V111 stamped pressure valves are available and the system has a super quiet muffler for noise control.
Designed for consistent pressure dew points, -40°C to -60°C, Oxair’s desiccant air dryers eliminate water and freezing ice in low ambient temperatures. The system comes completely assembled, piped and wired with a full charge of activated alumina desiccant.
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